Reported brightness and distance underpin conditional optical-power estimates for six cases.
Supplied text and apparatus reviewedGround-level radiative-energy estimates are revisited using reported observations and physical models.
Supplied paper text readLingam and Loeb propose spectral edges from hypothetical extensive photovoltaic surfaces as possible technosignatures. Contrast and power estimates depend on assumed coverage, reflectivity and geometry. Vegetation, minerals, clouds and ordinary heat transport remain alternatives. The figures combine cited reflectance curves and a schematic orbital scenario. The paper reports no detected extraterrestrial arrays. Historical instrument forecasts, manuscript comments and work-level Starshot support are qualified separately.
All five supplied preprint pages and native layouts; conditional proposal and original gapsA curated public selection. Source review describes what was read; it does not establish that a claim is true. Our research approach